[Xenophelius]

By urea sulfate I am referring specifically to CH₆N₂SO₅. Is it possible to remove the urea from this compound and just be left with sulfuric acid?

[billnotgatez]

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http://www.chemicalforums.com/index.php?topic=65859.0

[AWK]

Bad idea.
Battery sulfuric acid (37%) is easy to buy, even from Amazon.

[Xenophelius]

I have considered the addition of water to hydrolyze the carbamide which would generate ammonium sulfate and carbamic acid. The acid should volatilize out of solution at room temperature, but that would require re-acidifying the ammonium sulfate. As for buying battery acid, that would be a solution to getting sulfuric acid. I was just trying to think through chemical purification techniques.